<template>
  <div class="breadcrumb">
    <el-breadcrumb separator="/" class="app-breadcrumb">
  <!-- <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item><a href="/">活动管理</a></el-breadcrumb-item>
  <el-breadcrumb-item>活动列表</el-breadcrumb-item>
  <el-breadcrumb-item>活动详情</el-breadcrumb-item> -->

  <transition-group name="breadcrumb">
      <el-breadcrumb-item v-for="(item,index) in levelList" :key="item.path">
        <span v-if="item.redirect==='noRedirect'||index==levelList.length-1" class="no-redirect">{{ item.meta.title }}</span>
        <a v-else @click.prevent="handleLink(item)">{{ item.meta.title }}</a>
      </el-breadcrumb-item>
    </transition-group>

</el-breadcrumb>




  </div>
</template>

<script>
import pathToRegexp from 'path-to-regexp'
export default {
    data () {
        return {
            levelList:null
        }
    },
    methods: {
        handleLink(item) {
      const { redirect, path } = item
      if (redirect) {
        this.$router.push(redirect)
        return
      }
      this.$router.push(this.pathCompile(path))
    },
    getBreadcrumb() {
      // only show routes with meta.title
      let matched = this.$route.matched.filter(item => item.meta && item.meta.title)
      const first = matched[0]
      console.log(matched);
      console.log(first);

      if (!this.isDashboard(first)) {
        
        matched = [{ path: '/', meta: { title: '首页' }}].concat(matched)
      }

      this.levelList = matched.filter(item => item.meta && item.meta.title && item.meta.breadcrumb !== false)
    },
    pathCompile(path) {
      // To solve this problem https://github.com/PanJiaChen/vue-element-admin/issues/561
      const { params } = this.$route
      var toPath = pathToRegexp.compile(path)
      return toPath(params)
    },
    isDashboard(route) {
        console.log("route",route);
      const name = route && route.name
      if (!name) {
        
        return false
      }
      
      return name.trim().toLocaleLowerCase() === 'Dashboard'.toLocaleLowerCase()
    },
    },
    created() {
    this.getBreadcrumb()
  },

}
</script>

<style lang="scss">
.breadcrumb{
    text-align: left;
.app-breadcrumb.el-breadcrumb {
   
  display: inline-block;
  font-size: 14px;
  line-height: 50px;
  margin-left: 8px;
  margin-left: 200px;
  .no-redirect {
    
    color: #97a8be;
    cursor: text;
  }
}

}

</style>